Department of Clinical Nutrition, Dongduk Women's University, Seoul 136-714, Korea.
1Department of Food and Nutrition, Ewha Womans University, Seoul 120-750, Korea.
2Department of Food and Nutrition, Kyung Hee University, Seoul 130-701, Korea.
3Department of Home Economics Education, Pai Chai University, Daejeon 302-735, Korea.
4Department of Food and Nutrition, Dongduk Women's University, Seoul 136-714, Korea.
Copyright © 2014 The Korean Society of Community Nutrition
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
The research was supported by a grant (12162KFDA155) from Korea Food & Drug Administration in 2012.
1) Mean ± SD for each quartile: 12.05 ± 0.07, 16.53 ± 0.04, 20.02 ± 0.03, 24.12 ± 0.05, 31.33 ± 0.16
2) Analysis of variance for continuous variables and and chi-square test for categorical variables
3) Mean ± SD for each quartile: 9.15 ± 0.07, 12.41 ± 0.03, 14.99 ± 0.03, 18.06 ± 0.04, 24.63 ± 0.16
4) Mean ± SD
5) N (%)
1) Mean ± SD for each quartile: 11.91 ± 0.23, 17.89 ± 0.09, 22.12 ± 0.08, 26.77 ± 0.09, 33.90 ± 0.27 ng/mL
2) Analysis of variance for continuous variables and chi-square test for categorical variables
3) Mean ± SD for each quartile: 9.28 ± 0.18, 13.50 ± 0.06, 16.73 ± 0.08, 20.58 ± 0.10, 27.70 ± 0.30 ng/mL
4) Mean ± SD
5) N (%)
Characteristics of the subjects according to the quintiles of serum 25-hydroxyvitamin D concentrations by season in Korean adults aged 19 to 64 years
1) Mean ± SD for each quartile: 12.05 ± 0.07, 16.53 ± 0.04, 20.02 ± 0.03, 24.12 ± 0.05, 31.33 ± 0.16
2) Analysis of variance for continuous variables and and chi-square test for categorical variables
3) Mean ± SD for each quartile: 9.15 ± 0.07, 12.41 ± 0.03, 14.99 ± 0.03, 18.06 ± 0.04, 24.63 ± 0.16
4) Mean ± SD
5) N (%)
Characteristics of the subjects according to the quintiles of serum 25-hydroxyvitamin D concentrations by season in Korean older adults aged 65 and older years
1) Mean ± SD for each quartile: 11.91 ± 0.23, 17.89 ± 0.09, 22.12 ± 0.08, 26.77 ± 0.09, 33.90 ± 0.27 ng/mL
2) Analysis of variance for continuous variables and chi-square test for categorical variables
3) Mean ± SD for each quartile: 9.28 ± 0.18, 13.50 ± 0.06, 16.73 ± 0.08, 20.58 ± 0.10, 27.70 ± 0.30 ng/mL
4) Mean ± SD
5) N (%)
Regression coefficient (95% CI) for association between serum 25-hydroxyvitamin D concentrations and daily consumption frequencies of vitamin D rich foods by season in Korean adults aged 19 to 64 years
Adjusted for age, sex, sunlight exposure time, supplement use
Regression coefficient (95% CI) for association between serum 25-hydroxyvitamin D concentrations and daily consumption frequencies of vitamin D rich foods by season in Korean older adults aged 65 and older years
Adjusted for age, sex, sunlight exposure time, supplement use
1) Mean ± SD for each quartile: 12.05 ± 0.07, 16.53 ± 0.04, 20.02 ± 0.03, 24.12 ± 0.05, 31.33 ± 0.16 2) Analysis of variance for continuous variables and and chi-square test for categorical variables 3) Mean ± SD for each quartile: 9.15 ± 0.07, 12.41 ± 0.03, 14.99 ± 0.03, 18.06 ± 0.04, 24.63 ± 0.16 4) Mean ± SD 5) N (%)
1) Mean ± SD for each quartile: 11.91 ± 0.23, 17.89 ± 0.09, 22.12 ± 0.08, 26.77 ± 0.09, 33.90 ± 0.27 ng/mL 2) Analysis of variance for continuous variables and chi-square test for categorical variables 3) Mean ± SD for each quartile: 9.28 ± 0.18, 13.50 ± 0.06, 16.73 ± 0.08, 20.58 ± 0.10, 27.70 ± 0.30 ng/mL 4) Mean ± SD 5) N (%)
Adjusted for age, sex, sunlight exposure time, supplement use
Adjusted for age, sex, sunlight exposure time, supplement use